Tipping frame for wagons



M. ROEDEL TIPPING FRAME FOR WAGONS Filed Nov. 15, 1938 March 11, 1941.

Patented Mar. 11, 1941 UNITED s r-Ares 'QIIPPING FRAME-FOB. WAGONS MaxRoedcl, Munich, Germany, assignor to F; XL Meiller, Maschinenfabrik &Wagenbauanstalt,

1 Munich, Germany I Application November 15, 1938,Serial No.'240,543 7In Germany May 8, 1937 r 1 1 Claim. (01. 29 28) For tipping the bodies(wagon boxes and the like) of wagons, frames are mostly used whichconsist of two longitudinal girders connected by transverse girders andoften with corner struts. These rectangular tipping frames aresufiiclently rigid to impart the necessary strength to the bottom of thebody during lateral and rearward tipping but the tipping frames, inspite of the very strong and heavy girders, are not capable ofwithstanding all stresses occurring during the tipping operation. Thus,for example when the load slides laterally, the rectangular tippingframe is always stressed unequally with the result that stresses occurin the frame which twist it and result in deformation of the wagon body.The side plankings of the wagon box then gape and the latches and hookscan only be closed with dificulty. These objections are particularlyapparent in wagons tilting in three directions. Another disadvantage isthat the tip bearing points for the lateral tipping are very far awayfrom the longitudinal girders, so that long tip bearing arms arenecessary which must be very strong to avoid bending. In the knowntipping frames the engagement of the hydraulic jack is confined to acertain point not too far from the middle of the frame and cannot bechanged, as is often necessary, according to the different requirementswhich the wagon has to meet.

This invention relates to a tipping frame which overcomes all thesedifliculties and is further characterized in that it can be made muchlighter and consequently requires considerably less material for itsproduction than the tipping frames hitherto used.

The invention is characterized chiefly in that the tipping frameconsists of two oblique intersecting longitudinal girders, which extendpast the tip bearing points in close proximity thereto. The obliqueintersecting frame can have a transverse girder in the middle so that astarshaped frame is formed.

Several embodiments of the invention are illustrated by way of examplein the accompanying drawing, in which:

Fig. 1 is a side elevation of a tipping frame,

Fig. 2 is a top plan view of Fig. 1,

Figs. 3 to 5 each show on a smaller scale a. tipping frame of modifiedconstruction in top plan view.

The tipping frame according to Figs. 1 and 2 consists of two oblique,intersecting, longitudinal girders a, a. which are preferably ofU-section, but might also be of T-, H-, tubular or angular section. Asshown in Fig. 1, they are preferably higher in the middle than at theirends but may be of uniform height throughout their entire length. At asufficient distance from the middle the longitudinal girders are bentoff so that they form two sections: a. extending parallel to the axis ofthe wagon. The bridge I) of the wagon box 0 rests on the longitudinalgirders; d is a discharging bar.

The longitudinal girders a, a lie at such an angle that they come withinclose proximity to the tip bearing points in such a manner that onlyvery short stub-like tip bearings e are necessary. At the point ofintersection of the oblique intersecting girders a counter-bearing isprovided for the engagement of the jack f. The counter-bearing may, asis customary, consist of a cup 9 to which the longitudinal girders a, aare connected in a suitable manner, for example by bolts or rivets, butpreferably by welding.

At the point of intersection of the longitudinal girders a, a. atransverse girder h of T-, H-, U-, tubular or angular section isprovided for additionally stiffening the cross frame so that the tippingframe has the shape of a star.

If the hydraulic jack ,2 is to engage not in the transverse axis butlaterally thereof, the tipping frame is constructed as shown in Fig. 3so that the longitudinal girders a form triangles with sides ofdifferent lengths. The cup y can therefore be located on the right orleft of the transverse axis. It may also be located laterally of thelongitudinal axis.

Fig. 4 shows a form of construction, in which the point of engagementfor the hydraulic jack can be changed as desired. For this purpose thetipping frame has a head plate 1; which is connected to the girders andrests on a trans verse bar k in such a manner that the jack f can engagein the angular space 111. filled by the head plate 2' more or less fromthe middle. The head plate 2' may, as shown, extend also towards theleft or in both directions, for example when employing two jacks, seeFigs. 4 and 5. According to Fig. 4 the oblique longitudinal girders aare straight throughout their entire length.

When it is a question of making the tipping frame particularly light,the middle transverse girder h may be omitted, as shown in Fig. 5, sothat an X-shaped frame is formed, in which the longitudinal girders a.are either straight along their entire length or deflected at theirends. A spare tyre r is accommodated at the front between the sectionsa, a (Fig. 2).

In the form of construction shown in Fig. 5 the head-plate i is so longthat it has two bearing points on its girder side for the engagement ofone or two hydraulic jacks J. On each end of the frame the longitudinalgirders a intersecting in X-shape are connected by U-section bars k'which are welded to the longitudinal girders a. A correspondingly longhead-plate i of U-shaped cross-section is placed on these transversebars k and is welded thereto and also to the longitudinal girders a. Thedownwardly directed longitudinal flanges of the headplate 1 are cut away-to allow passage of the girders a. The two jacks f engage on theunderside of the head-plate i.

The tipping frame according to the invention is light in weight,requires very little material and, owing to its oblique longitudinalgirders, is particularly advantageous in that all stresses occurringduring the tipping operation, irrespectively of whether the load slipsequally or unequally, are taken up so that the tipping frame remainsfree from torsion. The tip bearing arms e need only be very short sothat they cannot bend. The hydraulic jack, may engage at differentpoints of the tipping frame to meet requirements. All these advantagescannot be attained with'rectangular intersecting struts, as has alreadybeen proposed.

I claim:

An Xshaped tipping frame for the box of a wagon, comprising incombination with the rectangular-tipping frame two load carrying girdersintersecting" in X-shape, two transverse bars under'said girders, and asupporting head-plate extending under said X-shaped girders and restingon said transverse bars and destined for, the engagement of hydraulicjacks.

MAX ROEDEL.

